From owner-freebsd-questions@FreeBSD.ORG Wed May 30 18:47:50 2012 Return-Path: Delivered-To: freebsd-questions@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [69.147.83.52]) by hub.freebsd.org (Postfix) with ESMTP id 2C5F1106566B for ; Wed, 30 May 2012 18:47:50 +0000 (UTC) (envelope-from jbiquez@intranet.com.mx) Received: from intranet.com.mx (intranet.com.mx [200.33.246.7]) by mx1.freebsd.org (Postfix) with ESMTP id 02CF58FC12 for ; Wed, 30 May 2012 18:47:49 +0000 (UTC) Received: from PC2.intranet.com.mx (189.144.175.6) by intranet.com.mx with ESMTP (EIMS X 3.3.9); Wed, 30 May 2012 13:48:10 -0500 X-Mailer: QUALCOMM Windows Eudora Version 7.1.0.9 X-Priority: 1 (Highest) Date: Wed, 30 May 2012 13:47:34 -0500 To: Robert Bonomi From: Jorge Biquez In-Reply-To: <201205301832.q4UIW3Io017126@mail.r-bonomi.com> References: <3421246151-1670043725@intranet.com.mx> <201205301832.q4UIW3Io017126@mail.r-bonomi.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii"; format=flowed Message-ID: <3421248490-1670043744@intranet.com.mx> Cc: freebsd-questions@freebsd.org Subject: Re: Firewall, blocking POP3 X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 30 May 2012 18:47:50 -0000 Hello. Thanks a lot!. Simple an elegant solution. I just did that and of course it worked.... I just was wondering... what if I need to have the service working BUT want to block those break attemps? IN this and other services. ? My guess is that it is a never ending process? I mean, block one, block another, another, etc? What the people who has big servers running for hosting services are doing? Or you just have a policy of strng passworrds, server up-todate and let the attemps to try forever? Thanks for the solution Mr Robert. Jorge Biquez At 01:32 p.m. 30/05/2012, Robert Bonomi wrote: > > From owner-freebsd-questions@freebsd.org Wed May 30 13:16:37 2012 > > Date: Wed, 30 May 2012 13:08:30 -0500 > > To: freebsd-questions@freebsd.org > > From: Jorge Biquez > > Cc: > > Subject: Firewall, blocking POP3 > > > > Hello all. > > > > I am sorry if the question is too basic. > > > > I have a personal small machine running > > > > FreeBSD 7.3-PRERELEASE #0: > > > > It runs as my web and email server for a cuple of domains. NO clients > > no other users have access to it. > > > > Is there any , easy/faster way to stop POP3 from being working. I am > > running qpopper to be able to download emailes. > > I decided to use sendmail since only a few accounts are there and I > > do not need more but in the last days the server has been under a big > > attack where people is trying to guess users and passwords. I am > > using a strong schema of passwords so no problem on that but I rather > > to be sure . > >The mail -server- you use is irrelevant to how users retrieve mail. >you can use sendmail and qpopper, or sendmail and an IMAP server, or >sendmail and webmail app, or postix and qpopper, or exim and qpopper, >etc. > > >All you have to do to disable qpopper is edit comment out the line in >/etc/inetd.conf, and SIGHUP inetd. > >To re-enable when you need it, uncomment the line, and SIGHUP inetd again.